25971960425 has 12 divisors (see below), whose sum is σ = 33244110336. Its totient is φ = 20107323600.

The previous prime is 25971960373. The next prime is 25971960431. The reversal of 25971960425 is 52406917952.

It is not a de Polignac number, because 25971960425 - 2⁸ = 25971960169 is a prime.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 16755329 + ... + 16756878.

It is an arithmetic number, because the mean of its divisors is an integer number (2770342528).

Almost surely, 2^25971960425 is an apocalyptic number.

25971960425 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

25971960425 is a deficient number, since it is larger than the sum of its proper divisors (7272149911).

25971960425 is a wasteful number, since it uses less digits than its factorization.

25971960425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33512248 (or 33512243 counting only the distinct ones).

The product of its (nonzero) digits is 1360800, while the sum is 50.

The spelling of 25971960425 in words is "twenty-five billion, nine hundred seventy-one million, nine hundred sixty thousand, four hundred twenty-five".